252.01 Description. This work consists of the
full depth removal of existing rigid pavement in areas exhibiting
deterioration, correcting the subgrade, placing and compacting asphalt
concrete, and restoring the shoulders.

252.02 Removal of Existing Rigid Pavement. Conform to 255.03, except the last paragraph does not apply.

252.03 Correction of Subgrade. Shape and
recompact the subgrade as the Engineer directs.
Clean all vertical faces of the existing pavement, and coat them with asphalt
material according to 401.14.

252.04 Placement of Asphalt Concrete. Construct
the pavement replacement by placing and compacting Item 301
or 448, Type 2 material in two or more lifts
according to 401.16.

Thoroughly
and uniformly compact the first lift and all intermediate lifts using suitable
mechanical compaction equipment operated over the entire replacement area.

Thoroughly
compact the final lift using a pneumatic tire roller that conforms to 401.13. As the rolling progresses, add
additional patching material, as necessary, to produce a smooth surface flush
with the existing pavement surface.

Continuously
compact each lift while the material is in a workable condition throughout the
depth of the lift.

Trim
the limits of the repair to form a vertical face 1.5 inches (38 mm) deep from
the surface before placing the final asphalt concrete layer adjacent to the
existing pavement unless the repair is covered with an overlay within 60 days.

If
the Contract does not include resurfacing, seal the perimeter surface of the
repaired areas by applying a nominal 4 inch (100 mm) wide strip of approved 702.04 asphalt material, RS-1, RS-2, CRS-1,
or CRS-2 or 702.01 approved PG binder.

After
completing repairs, restore the existing shoulders to the condition that existed
prior to the repair work.

252.05 Method of Measurement. The
Department will measure the quantity of Full Depth Rigid Pavement Removal and
Flexible Replacement by the number of square yards (square meters) of rigid
pavement repaired in the complete and accepted work, calculated using the
dimensions established by the Engineer.

The
Department will measure the quantity of Full Depth Pavement Sawing by the
number of feet (meters) of full depth saw cuts in the complete and accepted
work. The Department will not measure offset saw cuts. The
Department will not measure additional cuts made to facilitate the removal of
the pavement

252.06 Basis of Payment. Payment
is full compensation for furnishing all materials, including aerosol spray
paint, removing pavement, correcting the subgrade, placing flexible pavement,
sealing, and restoring the shoulders and for all labor, equipment, and
incidentals necessary to complete this work.

The
Department will not pay for removal, disposal, and replacement of pavement damaged
adjacent to the repair area.

The
Department will pay for accepted quantities at the contract prices as follows: